uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/data/fonts/zilla-slab/default.nix

@@ -0,0 +1,33 @@
+{ lib, fetchzip }:
+
+let
+  version = "1.002";
+in fetchzip {
+  name = "zilla-slab-${version}";
+
+  url = "https://github.com/mozilla/zilla-slab/releases/download/v${version}/Zilla-Slab-Fonts-v${version}.zip";
+  postFetch = ''
+    unzip $downloadedFile
+    mkdir -p $out/share/fonts/truetype
+    cp -v zilla-slab/ttf/*.ttf $out/share/fonts/truetype/
+  '';
+  sha256 = "1b1ys28hyjcl4qwbnsyi6527nj01g3d6id9jl23fv6f8fjm4ph0f";
+
+  meta = with lib; {
+    homepage = "https://github.com/mozilla/zilla-slab";
+    description = "Zilla Slab fonts";
+    longDescription = ''
+      Zilla Slab is Mozilla's core typeface, used
+      for the Mozilla wordmark, headlines and
+      throughout their designs. A contemporary
+      slab serif, based on Typotheque's Tesla, it
+      is constructed with smooth curves and true
+      italics, which gives text an unexpectedly
+      sophisticated industrial look and a friendly
+      approachability in all weights.
+    '';
+    license = licenses.ofl;
+    maintainers = with maintainers; [ caugner ];
+    platforms = platforms.all;
+  };
+}